Stapling mechanism



A fil3,l92& 'L664A34 E. P. SHELDON STAPLING MECHANISM Filed Sept. 11. 1924 6 Sheets-Sheet l v INVNT R WIZWT/QM? m w M llll llk l E. P. SHELDON STAPLING MECHANISM Filed Sep 11. 1924 April 3, 1928.

E. P. SHELDON SI APLING MECHANISM April 3, 1928.

Filed Sept. 11. 1924 6 Sheets-Sheet 3 INVENTOR W/M FIG.5.

April 3, 1928. 1,664,434

E. P. SHELDON STAPLING MECHANISM Filed Sept. 11. 1924 6 Sheets-Sheet 4 April 3, 1928.

E. P. SHELDON STAPLING MECHANISM Filed Sept. 11. 1924 6 Sheets-Sheet 5 m mum?! mumllullliullm April 3, 1928. 1,664,434

E. P. SHELDON STAPLING MECHANISM Filed Sept. 11. 1924 e Sheets-Sheet 6 Patented Apr. 3, 1928.

UNITED STATES "PATENT OFFICE. v

EDWARD P. SHELDON, OF BROOKLYN, NEXKT'YORK, ASSIGNOR', BY MESNE ASSIGN MENTS, To n. H E 'AND '00., mo, OF New YORK; Y., A CORPORATION OF NEW YORK. c 5' STAPLING MECHANISM.

Application filed September 11, 1924. Serial No. 737,019.

' This invention relates to certain improvements in stapling or stitching mechanism, and has been designed. particularly for use with printing machines,

In stapling mechanisms, as. usually provided for stapling the product from printing machines, a stapling mechanism, usually in the form of a cylinder, 21 wire supply and stapling horn were provided. An abutment,-

usually in the form of a roll, wasalso provided, against which, the staples were clenched. These parts took up space, and frequently it was inconvenient to install them in the place desired owing to thepress construction,v and when installed it was ditficult to get at them for adjustment or repair.

Further, where the product is to be collecte'd, a collecting machanism is necessary,

ranged in a certain location in the press,

Furthermore, where it was installed, it was often inconvenient or difficult to get at the stapling horn, the wire and the wire feed for adjustment or renewal.

The particular object of the present invention is to provide a unitary. staple forming and inserting mechanism in which the wiresupply and the staple forming and inserting mechanism are all mounted on one carrier, theparts being arranged so that a small carrier, as a cylinder, may be used, wh ch takes up so little space that it may be positioned at any desired point in the inachine,

A furtherv object of the invention is to also provide an organization whiclrwill also act asa collecting mechanism and, ifdesired, one of a pair of cutting cylinders th estaple being clenched against the roll Withwhich the cutting mechanism cooperates to sever the sheets, so that the mechanism is cornplete, in itself'and no extra additional cylinders or other parts separate from the cylinder are required.

\Vith' these and other objects not specifically referred to in view, the invention consists in certain novel parts, arrangements and combmatlons which Wlll be described 111 connection with the accompanying drawings, and. the novel features pointed out in the claims annexed hereto.

Referring to the accompanying draw- 1I1gS,- 1

Figure 1 is a side elevation of a. unitary cutting, collecting and stapling cylinder in which therwire supply, the staple forming and inserting mechanism, and the cutting and COll6Ct1I1g'lTl8Cl1&HlSm are all carried by one rotary member;

Figure 2 is a sectional plan; view, partly I broken away, or one end of the shown in Fig. 1; Figure-3 is a vertical sectional view of th mechanism shown in Fig. 2, the section being taken looking in the direction of arrow 3 of Fig. 2, on the irregular line 33 of Fig. 2; Figure {L is a cross sectional view'taken on the line l4 of Fig. 3, looking ini the direction of the arrow and showing the position atlon;

position of the parts after the wire has been shaped to form the staple; I

.Figure 6 is a similar view showing'the position of the parts after the staple has been inserted; r F igure7 is a cross sectional view taken on the irregular line 77 of Fig. 8;

Figure 8 is a detail sectional View, the section being taken on the line 88 of Figure 9 is a detail sectional view taken on the line 9-9 of Fig. 5;

Figure 10 isa detail sectional view on the line 10-1O of Fig. 3.; l

Figure 11 is a sideview, on an enlarged scale, showing the wire supply and the methcylinder taken of the parts prior to the staple forming operthe collecting and cutting cylinder and its cooperating abutment.

Referring now to these drawings, the particular machine chosen to illustrate the in vention includes a collecting and stapling cylinder, which is also provided with cu ting mechanism, and the staple is clenched against the cylinder or roll with which the cutting mechanism cooperates to sever the sheets. It will be understood, however, that the invention is not to be limitedto a cutting cylinder, but that it has been designed for use with a mechanism in which the cutting elements I are omitted, the staple being clenched against any suitable abutment.

Machines constructed in accordance with the invention, however, will include a rotary carrier provided with a unitary stapling mechanism, and the wire supply will be supported from the carrier, so that the mechanism will include a self contained staple forming and inserting mechanism. While the carrier may vary in construction, in the particular machine chosen to illustrate the invention, this carrier is a cylinder,'1narked A, this cylinder being supported by shaft heads B and B suitably journalled in side i an frames C, which may be the framing of any desired part of the press in which the stapling mechanism is positioned. The'particular. stapling mechanism shown is capacitated to insert a line of staples in a product, two such mechanisms bein indicated generally in Fig. 1 by S and g, and there are provided two wire supplies, two wire feed ing mechanisms and operating mechanisms therefor, two staple forming and inserting mechanisms, and operating mechanism for simultaneously operating both of the staple forming and inserting mechanisms. While the wiresupplies may be supported in any suitable manner, they, are supported on the outside ends of the shaft heads, that is, the ends outside the frames, as shown in Fig. 1. As these mechanisms are duplicates of each other, it will be necessary to describe but one. 1

Referring now to the left hand end of Fig. 1 and Figs. 11- to 13 inclusive, the wire is supplied from wire rolls 1, these rolls being carried from pins 2 rotatably mounted at one end ona stud 2 secured, as by a setscrew 3, in a bracket 8. This bracket is secured to a threaded head 4: screwed onto the shaft or journal 4100 of shaft head l3, before referred to. The head 1, opposite the bracket 3, is provided with an arm 5 through which the free end of the pin 2 passes. The free end of the pin, beyond the arm, is provided with a groove 6 which engages a latch 7 pivoted on a pin 8 screwed into the arm. The latch 7 is provided, at its rear end, with a notch 9 which receives a projection 10 one spring 10 secured to the arm, this spring acting normally to keep the B by means of set screws 15.

latch in place. With this construction the W116 supply is readily accessible, and an exe inder, the wire forwarding means are located inside the cylinder, and means are provided, adjustable from outside the cylinder, for varying the feeding action of the wire advancing mechanism. As illustrated, the head 1 is formed with a guide channel 11 having a. flared outer end'lfZ, this channel projecting through the shaft head 13 to the interior of the cylinder guiding the wire to the wire advancing mechanism. the head 1 may be secured on the shaft head The particular wireadvancing mechanismincludes an upper guideway 16 (see Fig. 3), a pair of advacing rolls 17, 18, and a lower guideway 13 through which the wire isdirected from the advancing means to the staple forming and inserting mechanism. While these rolls may be mounted and operated in various rays, in the particularconstruction illustrated, the roll 17 is journalled on a stud 19 supported in a bracket 20 secured to the interior. of the cylinder. This bracket is provided with an extension '22, in which there is rotatably supported a threadedrod 23, thisrod, as shown in Fig. 7, being dimensioned and located so as-to project to the outside of therylinder, the outer end being formed, as shown, with a squaredend 23 arranged to receive a suitable tool for rotating the rod, an aperture being left in the cylinder wall around this squared end for the reception of the tool. The stud 19 has secured thereto a driver in the form of a gear 2 1, this gear meshing with a .sin'nlar In machines If desired,

gear 25 carried on a shaft 26 on which the cooperating feed roller 18 is mounted.

One of these rolls is a driven .roll, and in the particular construction illustrated the roll 18 is thus driven. Inthe best constructions, the roll \villbe,"d en with a step by step movement, thus effecting an intermittent advancing movement of the wire. W hile this may be effected in various ways, in the particular construction illustrated, fast on the shaft 26, is a ratchet 27, the ratchet and the gear 25 being secured to the roll by screws 28 (see Fig.8), the feed roller 18 being fixedly secured on the shaft, as by a key or feather 28. This shaft 26 (see 7) is preferably extended outside the cylinder wall so that the wire driving mechanism may be operated Lama inder. wall being recessed, around the squared roll. 18 may be operated for testing purposes jecti-on 34 carried on a slide bar 35.

or feedingin the end of a. new .wire roll, thisoperation being effected without changingthe relative position of anyof the co- Operating parts. This'shaft 26 is, or may be, supported in any suitable manner, but is in r the particular construction illustrated supported in a U shaped bracket 260 (see Fig.

8) suitably secured to a partition 74 referred to hereafter.

The driving gear 1s operated in any suitable'manner to effect an intermittent step. by step. movement. In the particular construction illustrated, the shaft 26 has journalled thereon a lever arm 30 which carries. in. one end a pawl 31 which is secured inthe armbya; pin 310 and engages'the is positioned to.- engage in an elongated slot 33 formed in the upperend of a lug orpro- This slidebar is. mounted to have a reciprocating sliding movement'in thecylinder wall, and is provided with projections 36- which engage slideways. 37 formed in the wall of the cylinder and a bracket 38 Thisbar is reciprocated: to effect the, intermittent movement of the driving gear, at the proper time, by means of: a cam: roll 38 which en- 7 gages (see 3) agroove in a cam 39 fast on the shaft. head-B before referred to.

The staple wire is advanced through the guideway 13 by the movement of the feed rollers,.beforereferred to, so as to: lie across a wire supporting member 41 (see Fig. 4), this wire support. being provided with a wire receiving groove 410 and acting to support the wire during the staple forming operation. This supporting member is mounted on a rock. shaft 42 (see Figs. 4-and 5) which is journalledi in projections 43 formed on uprights 44 and 45 which support and guide the staple forming mechanism; These supports are each provided with a pair of guideways 46, 47, 48, 49 (see Fig. 2) and are secured in place, at one end, by being formed on a web 490 secured on the cylinder block,

or form 491, hereinafter referred to, and. at

the other end are provided with feet 510 by which they are secured in the cylinder by bolts 50, 51.

The wire support 41 is, at its rear end, provided with a shoulder 52,'and the shaft 42 has fast thereon (see Fig. 3) ,a cam 53. Means are provided by the present invention for locking this wire support 41 in wire receiving and supporting position while the staple is being formed and for -moving it out of position to permit. the .drivingofthe staple. In the particular construction shown, adjacent the shoulder .52, suitably the cylinder.

secured. in the cylinder,- is a stud 54, on which IS'PlVOtQd: a latch arm having a latch nose 550 which normally extends over the shoulder 52, as: shownnin Fig; 4,. and holds thewire support in raised position. This latch arm has mountedthereon astud 56' on which is mounted: a cam roll 57. z This cam roll. 57. is in the path of'a cam 58. This cam 58 is fixedly mounted on an operating shaft 59 which extends lengthwise. of the cylinder and is journalled in the; cylinder block or form 491, before. referred to, this shaft 59 being the operating shaft for both thestaple forming and inserting mechanisms S and S. This shaft extends through the shaft head BB and carries an arm 600 in which is supported a cam roll 60 running in the groove of. a cam 61 loose on the shaft or journal 400. of the shaft head 13,. This cam 61 is provided with. projections 62 (see dotted line Fig.3) whichenter between projections63 onthe hub 630 of agear 64, also loose on theshaft 400 of'the shafthead B. The cam 39,by which the slides- 35 are operated, is also secured'to the hub; ofthe cam 61' and to the hub 6300f the gear 64, these parts can'rotat-e together. v

The gear 64 may be locked to the framing C by bolts 65. Ban uncollected. product is forwarded to the cylinder for stapling,.the

parts will be, as shown'in' Fig. 1,. locked together, thebolts '65: being in place; When so that ill) the parts are in this. position the cylinderwill make one revolution to one operation of the staple forming and insertingmech anism. It will be observed that when the gear is locked to the framing C by the bolts 65, theshaft 409, being-driven from the gear 14, will. turn freely within the gear, hub

630- of the gear 64, the cam; 39 andtlie cam .61, driving the cylinder through the head B, the parts 64, 39 and 61 being stationary. As

the cylinder rotates, the roll 60 will be caused i bythe groove of the cam 61 to opera the stapling'mechanism, and the roll 38 turning with the slides '35 will be caused by the groove of the cam 39 to operate theslides, the mechanism functioning: to insert the staples at each revolution of the 'cylinder. If now acollected product is to be produced on the cylinder, the, bolts are removed so that the gear 64 ca-n turn andwith. it the cams 39 and 61. This gear may be placed in mesh witha gear: 640, driven in any suitable manner at'half the speed of the gear 14 by which the cylinder heads are driven, so that the cylinder will make two revolutions to one operation of the staple forming and'inserting mechanism, so that a collected stapled product is produced everytwo revolutions of It will be observed that when the parts are thus positioned the cams 39 and 61 are driven, thereby'shifting the position of the operating. surfaces of their cam grooves, so that; the cam rolls 38 and plunger by screws 701.

.. staple.

60 are operated at every other revolution of the cylinder A, so that the stapling operation takes place only on every other revolution of the cylinder, thus affording time for collecting.

The staple forming an inserting mechanisms are identical. and are both operated from the operating shaft 59, before referred .to.

While this mechanism may be of various characters, in the particular construction illustrated and best shown in Fig. 2,

provided on each side with projections 690- whieh work into the plunger guideways before referred to.

, Means are provided for euttingoff a wire length from the wire supply to form the In the particular construction iilustrated, this is effected by providing the rear plunger, that is, the plunger next adjacent the wire supply, with a cutting knife 700,

this cutting knife being secured to the This knife coopcrates with an abutment in the form of a cutting disc 71 (see Fig. 3) suitably secured in the cylinder form below the guideway 13,

before referred to, so that as the staple forming plungers are forced downwardly a sufficient length of wire to form the staple will be cutoff while the wire is still supported on the wire support 41 and just prior to the bending of the wire to form the staple.

These staples forming plungers are provided with rooves 72 see F 1 's. 4 and 5 into which the wire is forced, as the staple-forming plungers descend, to form the wire into an inverted U shaped staple, and after the wire is thus formed the staple is driven into the product by suitable mechanism which will now be described.

. This staple driving mechanism may be varied somewhat in construction, and the abutment against which the staple is clenched may be of various forms. In the particular construction illustrated, however, there is provided a second shaft 73, this shaft extending between and taking bearings in two partitions 74, 74- (see Fig. 1) of the cylinder form. This'shaft is, as shown, (see Fig. 2) disposed 'onthe-opposite sides of the guideways to the arm 66 and opposite the shaft 59, before referred to. This shaft 73 has secured thereon a lever arm 75 which is arrangedto extend over and between the ferred to.

apex of the triangle.

The outer end of this lever arm is provided with an elongated slot 76 which engages a pin 77 carried on the upper pertion of the driving plungers 770. A mecha-; nism is preferably provided whereby the shaft 73 is operated from'the shaft'59, before referred to. While these means may vary somewhat in construction, as shown, the le-' As the staple forming and inserting move- With this constructionments are exceedingly rapid ones, means are provided for quickly movingthe wire sup-' port 41 out of the path of the staple clenching plungers as these plungers are operated to drive the staple. In the particular construction illustrated, this is effected (see Fig.

9) by providing one of the wire forming plungers, as plunger 70, with a plate 81 carrying a cam stud 82. This stud runs in the ill) groove 530 of the cam 53 on the shaft 42,

before referred to. This cam groove is best shown in dotted lines in Figs. 4 and 5 and is so formed as to be substantially triangular, the high point of the cam 53 being the With this construction, as the staple forming plunger descends, it rides in the cam groove until it reaches the high point, when, because of the configuration of the groove, a very quick movedevices may be varied as desired, in the particular construction illustrated, these sheet taking devices are in the form of pins 84, one of which is shown in dotted lines in Fig. 4, mounted on a shaft 85, which is suitably journalled' in the cylinder block 491, and which is actuated by a cam .86, This eam-86 is locked to gear 87, and the cam 39, at the right-hand side of the machine looking at Figure 1, is locked to the cam 86 and the gear 87, the construction by which this is effected being the same as that on theopposite end of the machine, before described. The gear 87 is adapted to be driven at half speed from a gear 88 through the gear 649.

'When the parts are inthe position shown in Figure 1, the pins would operate at'every revolution of the cylinder, so that, when not collecting, the pins are silenced, as byremovment is given to the shaft 42 and the wire ing the pin points. Whemhowever, collecting'is desired, the gear 649 is meshed with the gear 88' and the gear 87 and the pin points replaced, so that the pins are operated together with the stapling mechanism at every other revolution'ofthe cylinder. I

The stapling cylinder may also act, if de-' sired, as a cutting cylinder. The form 491 of the cutting cylinder istherefore provided witha socket 90 in which is located a cutting of a cylinder 98 on a shaft 94, this cylinder I scribed that a very small cylinder has been being provided with theusual cutting woods 95. Where'the cylinder is used as a cutting cylinder, the cooperating cylinder 93 may form the abutment against which the staple is clenched and such cylinder is therefore provided with the usual anvil 96. It will be understood that a cylinder such as 93 with an anvil 96may be used for a clenching abutment whether the stapling cylinder has a cutting element or not, or that any other suitable abutment maybe used for effecting the clenching of the staple.

In constructions embodying the invention in its best form, the cylinder is provided with removable walls 97, 98 suitably secured to the form 491, so that ifit is desired to get at any interior mechanism of the cylinder this is readily done by removing one of the sections, the section being secured to the form by bolts 99, 100, shown inFig. 1. F

It will be seen with the construction deprovided for perfecting a staple forming or inserting action in which the cylinder acts as a unit, carrying its own wire supply, and that if and as desired this cylinder may also be used as a collecting and cutting cylinder. It will be observed that the cylinder is with out a central shaft, the cy'linder being supported on the shaft heads, so that a very small cylinder can be used and one which can be positioned in almost any part ofthe delivery end of a printing machine, wherever it may be desiredto position 1t, great economy in space and in parts being thus effected, as, for instahceyit may be placed adja I cent'the drawing off rolls indicated at D-D',

It is believed that the invention may be readily understood from the foregoing detailed description, but to assist in an understanding of the operation of the machine the following brief statement will be given.

The wire'is drawn in from the spool at each end of the machine through the wire feeding mechanisms and operated by the slide barsv 35 andthe cams 39, these wire feeding mecl1-' anlsms being duplicates. In Fig. 4 the parts are shown in their normal position, that is,

operation of the drivingplungers.

' may be desired. a

the position they occupy just as a wire length is 'fed Tonto "the wire support 41. When in this position, the cam 61 operates the shaft 59. This causes the start of the downward movement of the staple forming ,plunger's through the lever 66 to form the staple. As the staple forming plungers move down, the Wire length is cut by the cutting knife 700 cooperating with the disc? 1, this cutting being eifectedwhile the wire is on the'wire support 41. 'A further downward movement of the staple forming plungers forces the Wire into the staple forming grooves72 in the plungers and forms the staple. 'Dur ing this movement the'stud 82 travels in the groove 530 of the cam 53 and imparts no motion to the shaft 42 which actuates the wire support 41.

and gradually Withdrawing it from the shoulder 52 on the wire support carrying I shaft 42. This position of'the parts is illustrated in Fig. 5, in' which it will be seen that the latch is free, and when in this position the staple has been formed. The stud 82 at i this time has reached the apex or the high part of cam groove 530, whereuponfla very quick rocking action is imparted to the shaft 42 so that thewire support is quickly moved out of the way, leaving a clear path for the By this time the elongated'slot 76 of the lever 7 5 has reachedthe limit of its free play and a continuation of the downward movement causes a simultaneous downward movement of thestaple forming plunger and the stapledriv} ing plunger, so that they both reach the star pling line of the cylinder at approximately the same time and the inserting of the staple in the product is'effected against the anvil 96. 7 Just as soon as this is done the parts will return to the position shown in Fig. 4.

Wvhile the. invention has been illustrated and described in its preferred form, it will be understood that certain changes and V ariations may be made in the specific structure shown and described without departing from the invention. It will be further un-' derstood that the cylinder may be used with in the invention either as a stapling cylinder 'or as'a stapling and collectingfcylinder, or as a stapling, collecting and cutting cylinder, as

Vhat I claim is:

1. In a stapling mechanism, the oombina tion of a rotary cylinder, a. pair of headson which the cylinder is secured at each .end', shafts for the heads, staple wire j supplies mounted on the shafts outside the "heads,

means for driving one of the heads, astaple forming and inserting mechanism mounted in'the cylinder, sheet taking devicesfcarr ed by the cylinder, and means for actuating the sheet taking devices.

2. In a stapling mechanism, the combina ed to rotate with the carrier and outside the ends of the carrier, a staple forming and inserting mechanism on the carrier, sheet taking devices on the carrier, and a cooperating abutment.

3. In a stapling mechanism, the combination of a rotary carrier, a wire supply mounted to rotate with the carrier and outside the ends of the carrier, a-staple forming and inserting mechanism on the carrier, sheet tak ing devices on the carrier, a cutting mechanism on the carrier, and a cooperating abutment.

4. In a stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinderis secured at each end,"

shafts for the heads, staple wire supplies mounted on the shafts outside the heads, means for driving one of the heads, a staple forming and inserting mechanism mounted in the cylinder, a cooperating abutment, sheet taking devices carried by the cylinder, and means for operating the staple forming and inserting mechanism at each revolution of the cylinder or at a predetermined number of revolutions of the cylinder.

5. In astapling mechanism, the combination of a rotary cylinder, sheet taking devices thereon, a wire supply supported outside the opposite ends of the cylinder and rotating therewith, a staple forming and inserting mechanism mounted in the cylinder, and a cooperating abutment,

6. In a stapling mechanism, the combination of a rotary cylinder provided with sheet taking devices, a cutting mechanism mounted on the cylinder, a wire supply supported outside the opposite ends of the cylinderand rotating therewith, a staple forming and inserting mechanism mounted in the cylinder, and a cooperating abutment.

7. In a stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinder is secured at each end, shafts for the heads, staple wire supplies mounted on the shafts outside of the heads, means for driving one of the heads, a staple forming and inserting mechanism mounted in the cylinder, means for feeding wire to the staple forming and inserting mechanism, a cam for operating the staple forming and inserting mechanism, a cam for operating the wire feeding mechanism, means for causing the operation of the cams at each revolution of the cylinder or at a predetermined number of revolutions of the cylinder, and a cooperating abutment.

8. In a stapling mechanism, the combination'of a rotary cylinder, a pair of heads on which the cylinder is supported at its ends, shafts for the heads, a wire supply carried on each of the shafts outside the heads, wire feeding mechanisms located in thecylinder, a cam loose on each of the shafts for operatlng the Wire feeding mechanisms, a staple forming and inserting mechanism mounted in the cylinder, acam loose on one of the shafts for operating the staple forming and inserting mechanism, a gear loose on one of the shafts, means for connecting the gear, the

cams for operating the staple formingand inserting mechanism and one of the wire feeding mechanisms to run together, and a cooperating abutment.

9. In a stapling mechanism, the combinas' tion of a rotary cylinder, a pair of heads on which the cylinder is supported at its ends, shafts for the heads, a wire supply'carried. on each of the shafts outside the heads, wire feeding mechanisms located in the cylinder,

the shafts, means for connecting the gear, the

cams for operating the staple forming and inserting mechanism and one of the wire feeding mechanisms to run together, means for causing the cams to operate the mechanisms controlled by them at each revolution of the cylinder or at a predetermined number of revolutions, and a cooperating abutment.

10. In a stapling mechanism, the combination of a rotary cylinder, a pair ofheads on which the cylinder is secured at each end, shafts for the heads, staple wire supplies mounted on the shafts outside the heads, means for driving one of the heads, a staple forming and inserting mechanism mounted in the cylinder, and a cooperating abutment.

11. In a stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinder is supported at its ends,

shafts for the heads, a wire supply carried on each of the shafts, wire feeding mechanisms in the cylinder, cams on theshafts for operating the wire feeding mechanisms, stapic forming and inserting mechanisms in the cylinder, and a cooperating abutment.

12. In a stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinder is supported on its ends,

shafts for the heads, a wire supply carried.

on each of the shafts, wire feeding mechanlsms 1n the cylinder, cams for actuating the feeding mechanisms, staple forming and inserting mechanisms in the cylinder to:

which wire is delivered, means for adjusting the wire feeding mechanisms from outside the cylinder, and a cooperating abutment. f

18. In a stapling mechanism, the combina-v tion of a rotary cylinder, a pair of heads on which the cylinder is supported at its ends,

shafts for the heads, a wire; supply carried iii on each of the shafts, wire feedingmechamechanisms mounted in the cylinder, a cam on one of the heads for operating the staple forming and inserting mechanisms, and a cooperating abutment.

14. In a stapling mechanism, the combination of a rotary cylinder, sheet'taking devices thereon, a pair of heads on which the cylinder is supported at its ends, shafts for the heads, a wire supply carried on each of the shafts, wire feeding mechanisms mounted in the cylinder, a cam on each of the shafts for operating the feeding mechanisms, staple forming and inserting mechanisms in the cylinder, a cam for operating the forming and inserting mechanisms, and a cooperating abutment.

15. In a. stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinder is mounted, shafts therefor, wire supplies carried on the shafts, wire feeding mechanisms mounted in thecylinder,

each mechanism including a pair of feeding rolls, means for driving the rolls, including a pair of gears, a rod extending through the cylinder wall for adjusting one of the gears, staple forming and inserting mechanisms, and a cooperating abutment.

16. In a stapling mechanism, the combination of a rotary cylinder, a pair of heads on which the cylinder is mounted on each end, a wire supply carried on the heads, a pair of wire feeding mechanisms, each including a pair of feeding rolls, means-for driving the rolls by a step by step movement, a slide for actuating the driving means, a cam on the heads connecting with the slide, staple forming and inserting mechanisms in the cylinder, and a cooperating abutment.

17. In a stapling machanism, the combination of a rotary cylinder, heads at each end of the cylinder for supporting it, a wire supply supported from the heads, wire feeding mechanisms in the cylinder, means for actuating the feeding mechanisms, staple forming and inserting mechanisms capacitated to insert a line of staples in the product, a shaft mounted in the cylinder, means for actuating the shaft to simultaneously operate the staple forming and'inserting mechanisms, and a cooperating abutment.

18. In a stapling mechanism, the combination of a rotary cylinder, a pair of wire feeding mechanisms mounted in the cylinder, means for supplying the wire thereto,'a wire receiving support to which a wire length is forwarded, staple forming plungers cooperating with the support to form a staple, staple inserting plungers, means for removing the support from thepath of the staple inserting plungers, a shaft, connections between the shaft and the staple forming plungers, a second shaft, connections between the second shaft and the staple inserting plungers, means for operating the shafts,

and a cooperating abutment.

' 19. In a stapling mechanism, the combination of a rotary cylinder, a pair of wire feeding mechanisms mounted in the cylinder, means for supplying the wire thereto, a wire receiving support to which a wire length is forwarded, staple forming plungers coop erating with the support to form a staple, staple inserting plungers, means for removing the support from the path of the staple inserting plungers, a shaft, connections between the shaft and the staple forming plungers, a second shaft, connections between the second shaft and the staple inserting plungers, connections between the shafts whereby the second shaft is operated from the first shaft, and a cooperating abutment.

20. In a stapling mechanism, the combination of a rotary cylinder, heads on which the cylinder is supported at its ends, wire feeding mechanisms in the cylinder, means for supplying wire thereto, a pivoted wire length support to which the wire is forwarded, staple forming plungers cooperating with the support to form a staple, means for severing'a wire length from the wire, a shaft actuating the staple forming plungers, a staple inserting mechanism, a shaft for operating the same, means including a cam having a Vshaped groove for rocking thewire supportout of the path of the inserting mechanism, and a cooperating abutment.v

, In testimony whereof, I have hereunto set my hand.

EDWARD. P. SHELDON. 

